Lady Audleys Geheimnis(1978)

After spending six years in Australia, young Englishman George Talboy returns as a successful gold prospector. He wants to start a happy life with his beautiful wife Helen and their son Charles. So the news from his father-in-law that Helen has died comes as a crushing blow. An old friend, Robert Audley, takes George to the mansion of his uncle, Sir Michael Audley, and his wife, Lady Audley. During this visit, George disappears without a trace.